Director/Executive Producer McG then tweeted an exclusive photo of Kat during a costume fitting. She is set to play the lead role in the television series as Clarissa Fray. By the Angel, she definitely looks like Clary in this photo!

Cassandra Clare announced on Twitter that the sixth and finale book in ‘The Mortal Instruments’ series would be getting its cover revealed in an “interesting way”. But earlier she took to Twitter to divulge to fans that the cover will be shown live on TV!

Clare’s Tumblr post read, “So remember I said the cover of City of Heavenly Fire was going to be revealed in an interesting way? I’ve finally been given the okay to say that it’s going to be revealed on television — January 14th on The Insider (http://theinsider.etonline.com/tv/ ) 7pm EST on CBS!

For all y’all who don’t live in the US or whose DVRs are full of back episodes of The Walking Dead or whatever, the cover will be up online shortly after. :)”.

It’s no secret that we’re all really curious to see what gorgeous new cover we’ll soon be adding to our shelves and now the date’s set for fans to get the first look! There is no shortage of excitement when it comes to Cassandra Clare and a new book, and we’ve already got the date & time marked and committed to our memories.

How many Shadowhunters will be watching The Insider on CBS to see the unveil of City of Heavenly Fire? Which characters do you hope to see on the last cover? Tweet us @TMI_Institute or comment below. We’d love to hear your thoughts!